YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1916 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 50.27 | 55.65 | 57.26 | 50.13 | 38.16 | 29.56 | n | ----- | z | 50.29 | g | |||||
1917 | ----- | z | ----- | z | 33.94 | n | 39.97 | 46.32 | 50.37 | 59.00 | 58.48 | 53.20 | 41.29 | ----- | z | ----- | z | 49.80 | e | |||||||
1918 | ----- | z | ----- | z | ----- | z | 38.28 | a | 43.29 | 55.73 | 58.68 | 56.13 | 52.80 | 44.87 | ----- | z | ----- | z | 49.97 | e | ||||||
1919 | ----- | z | ----- | z | 36.26 | 40.63 | 45.19 | 49.33 | 58.97 | 58.35 | 48.07 | 38.19 | ----- | z | ----- | z | 46.88 | d | ||||||||
1920 | ----- | z | ----- | z | 36.03 | 38.17 | 43.61 | 50.80 | 59.84 | 58.26 | 50.63 | 40.94 | ----- | z | ----- | z | 47.28 | d | ||||||||
1921 | ----- | z | ----- | z | 37.42 | 38.63 | 45.32 | 55.77 | 56.87 | 58.26 | 46.50 | 42.29 | ----- | z | ----- | z | 47.63 | d | ||||||||
1922 | ----- | z | ----- | z | 33.03 | 38.27 | 44.10 | 57.07 | 61.55 | 59.58 | 52.67 | 43.16 | ----- | z | ----- | z | 48.68 | d | ||||||||
1923 | ----- | z | ----- | z | 34.81 | 40.37 | 46.81 | 51.63 | 59.81 | 59.35 | 51.03 | 40.87 | ----- | z | ----- | z | 48.08 | d | ||||||||
1924 | ----- | z | ----- | z | 33.10 | 38.30 | 48.35 | 53.70 | 59.94 | 57.13 | a | 50.13 | 42.71 | ----- | z | ----- | z | 47.92 | d | |||||||
1925 | ----- | z | ----- | z | 36.06 | 42.37 | 48.42 | 54.90 | 61.55 | 57.74 | 51.10 | 39.65 | ----- | z | ----- | z | 48.97 | d | ||||||||
1926 | ----- | z | ----- | z | 36.65 | 43.57 | 47.00 | 55.10 | 61.55 | 57.90 | 45.00 | 42.68 | ----- | z | ----- | z | 48.68 | d | ||||||||
1927 | ----- | z | ----- | z | 34.13 | 36.83 | 43.19 | 54.43 | 58.81 | 58.71 | 50.34 | a | 44.45 | ----- | z | ----- | z | 47.61 | d | |||||||
1928 | ----- | z | ----- | z | 37.65 | 39.10 | 47.74 | 52.57 | ----- | z | 58.19 | 50.73 | 42.61 | ----- | z | ----- | z | 46.94 | e | |||||||
1929 | ----- | z | ----- | z | 36.29 | 37.87 | 45.74 | 52.07 | 56.45 | 59.87 | 47.63 | 41.39 | ----- | z | ----- | z | 47.16 | d | ||||||||
1930 | ----- | z | ----- | z | 36.74 | 44.57 | 46.68 | 50.30 | 59.97 | 59.74 | 51.63 | 39.42 | ----- | z | ----- | z | 48.63 | d | ||||||||
1931 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1932 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1933 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1934 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1935 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1936 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1937 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1938 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1939 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1940 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1941 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1942 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1943 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1944 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1945 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1946 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1947 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 56.07 | ----- | z | 59.39 | 51.53 | 41.65 | 36.90 | 25.63 | a | 45.19 | f | |||||
1949 | 11.06 | 28.46 | 36.58 | 44.23 | 53.68 | 55.03 | 61.16 | 61.68 | 54.57 | 41.19 | 40.83 | 32.52 | 43.42 | |||||||||||||
1950 | 9.81 | 28.14 | 37.06 | 40.47 | 47.32 | 55.57 | 62.26 | 62.58 | 54.37 | 45.94 | 37.20 | 35.77 | 43.04 | |||||||||||||
1951 | 29.68 | 32.00 | 34.06 | 42.33 | 49.03 | 55.60 | 63.35 | 61.39 | 53.87 | 44.39 | 35.53 | 25.39 | 43.89 | |||||||||||||
1952 | 25.10 | 33.62 | 37.55 | 43.90 | 51.06 | 54.43 | 62.52 | 61.55 | 56.13 | 48.65 | 30.40 | 33.33 | a | 44.85 | ||||||||||||
1953 | 42.29 | 36.75 | 39.61 | 43.03 | 47.94 | 52.90 | 61.42 | 61.94 | 55.73 | 46.58 | 39.37 | 36.39 | 47.00 | |||||||||||||
1954 | 29.03 | 36.14 | 33.65 | 42.50 | 50.10 | 52.33 | 60.16 | 58.90 | 52.97 | 42.45 | 42.67 | 30.39 | 44.27 | |||||||||||||
1955 | 29.39 | 31.11 | 32.00 | 39.37 | 45.84 | 56.03 | 59.90 | 60.45 | 52.73 | 45.48 | 28.17 | 27.52 | 42.33 | |||||||||||||
1956 | 28.26 | 21.90 | 37.26 | 44.50 | 51.26 | 53.37 | 64.58 | 60.74 | 53.70 | 44.19 | 33.30 | 32.29 | 43.78 | |||||||||||||
1957 | 14.87 | 31.43 | 37.45 | 44.53 | 53.42 | 57.17 | 60.77 | 59.45 | 55.33 | 43.42 | 34.20 | 36.13 | 44.01 | |||||||||||||
1958 | 34.48 | 40.82 | 35.81 | 42.77 | 54.55 | 58.90 | 65.03 | 65.84 | 53.40 | 43.90 | 36.77 | 32.65 | 47.08 | |||||||||||||
1959 | 30.26 | 33.32 | 38.84 | 43.23 | 46.26 | 56.63 | 62.23 | 59.16 | 52.63 | 45.26 | 30.70 | 30.29 | 44.07 | |||||||||||||
1960 | 21.00 | 32.48 | 37.06 | 43.87 | 47.87 | 55.03 | 65.97 | 59.42 | 53.50 | 45.87 | 37.53 | 27.45 | 43.92 | |||||||||||||
1961 | 32.74 | 40.25 | 40.77 | 42.73 | 48.97 | 59.53 | 65.06 | 66.06 | 50.47 | 42.48 | 29.20 | 32.03 | 45.86 | |||||||||||||
1962 | 27.16 | 32.32 | 35.23 | 44.70 | 47.16 | 54.33 | 61.52 | 59.58 | 53.77 | 45.94 | 39.63 | 34.77 | 44.68 | |||||||||||||
1963 | 22.10 | 34.64 | 39.00 | 42.60 | 50.06 | 56.57 | 59.03 | 62.06 | 57.83 | 48.10 | 39.63 | 29.48 | 45.09 | |||||||||||||
1964 | 35.42 | 33.86 | 36.32 | 40.57 | 47.61 | 55.33 | 60.45 | 57.87 | 51.47 | 43.10 | 35.87 | 26.03 | 43.66 | |||||||||||||
1965 | 31.52 | 35.82 | 33.68 | 45.37 | 47.87 | 54.87 | 62.84 | 62.03 | 50.10 | 48.26 | 39.90 | 32.03 | 45.36 | |||||||||||||
1966 | 33.29 | 34.21 | 38.16 | 43.17 | 49.13 | 54.20 | 60.06 | 61.13 | 57.53 | 44.32 | 39.10 | 36.48 | 45.90 | |||||||||||||
1967 | 38.52 | 37.07 | 37.58 | 39.77 | 48.97 | 58.50 | 64.58 | 66.55 | 58.37 | 46.61 | 36.30 | 32.32 | 47.09 | |||||||||||||
1968 | 32.16 | 37.34 | 41.13 | 40.80 | 49.74 | 56.27 | 63.71 | 59.97 | 54.63 | 43.23 | 37.30 | 26.77 | 45.25 | |||||||||||||
1969 | 18.55 | 29.96 | 37.45 | 42.50 | 51.74 | 59.17 | 60.84 | 58.71 | 55.27 | 41.65 | 36.97 | 31.68 | 43.71 | |||||||||||||
1970 | 29.55 | 36.25 | 37.48 | 39.23 | 49.87 | 59.40 | 64.16 | 62.39 | 49.77 | 42.74 | 35.50 | 31.48 | 44.82 | |||||||||||||
1971 | 35.90 | 34.39 | 35.45 | 40.70 | 49.29 | 53.30 | 62.61 | 65.74 | 48.83 | 41.90 | 38.10 | 30.81 | 44.75 | |||||||||||||
1972 | 27.90 | 31.24 | 40.52 | 38.80 | 50.61 | 57.03 | 61.45 | 62.68 | 50.37 | 42.84 | 36.47 | 24.03 | 43.66 | |||||||||||||
1973 | 26.32 | 32.71 | 39.94 | 41.93 | 50.45 | 55.97 | 62.61 | 61.39 | 53.40 | 44.94 | 37.03 | 36.39 | 45.26 | |||||||||||||
1974 | 26.52 | 37.00 | 38.58 | 43.13 | 47.84 | 57.73 | 60.97 | 61.71 | 53.10 | 43.13 | 39.13 | 34.90 | 45.31 | |||||||||||||
1975 | 29.90 | 30.57 | 35.71 | 38.87 | 48.00 | 53.40 | 64.81 | 57.77 | 52.03 | 46.39 | 36.77 | 33.94 | 44.01 | |||||||||||||
1976 | 32.84 | 33.76 | 34.35 | 40.63 | 47.16 | 51.27 | 60.84 | 58.26 | 55.13 | 42.48 | 37.27 | 29.65 | 43.64 | |||||||||||||
1977 | 22.32 | 36.32 | 37.48 | 44.57 | 46.35 | 58.70 | 59.87 | 64.32 | 52.03 | 43.61 | 35.07 | 32.77 | 44.45 | |||||||||||||
1978 | 30.03 | 36.11 | 40.42 | 43.10 | 48.10 | 56.73 | 61.39 | 60.10 | 52.87 | 42.29 | 29.07 | 25.84 | 43.84 | |||||||||||||
1979 | 13.45 | 33.04 | 38.61 | 43.87 | 50.90 | 55.97 | 62.65 | 62.03 | 55.87 | 47.87 | 32.40 | 34.61 | 44.27 | |||||||||||||
1980 | 22.45 | 31.90 | 37.71 | 45.50 | 50.29 | 52.87 | 61.32 | 57.16 | 53.90 | 43.42 | 38.10 | 34.32 | 44.08 | |||||||||||||
1981 | 34.55 | 33.86 | 39.10 | 44.00 | 49.16 | 53.87 | 59.23 | 63.71 | 54.47 | 43.39 | 38.17 | 32.32 | 45.48 | |||||||||||||
1982 | 28.81 | 33.46 | 37.65 | 39.63 | 48.03 | 59.07 | 61.03 | 62.35 | 52.23 | 43.32 | 32.87 | 32.61 | 44.26 | |||||||||||||
1983 | 36.06 | 38.57 | 41.19 | 41.40 | 50.84 | 54.57 | 59.35 | 63.87 | 49.93 | 44.29 | 41.67 | 19.97 | 45.14 | |||||||||||||
1984 | 29.84 | 34.90 | 41.16 | 42.17 | 47.06 | 54.03 | 61.71 | 62.03 | 50.97 | 41.52 | 37.03 | 24.42 | 43.90 | |||||||||||||
1985 | 24.58 | 27.64 | 36.10 | 45.30 | 50.55 | 55.73 | 66.52 | 58.61 | 49.57 | 43.42 | 23.40 | 18.39 | 41.65 | |||||||||||||
1986 | 30.58 | 34.11 | 42.61 | 42.43 | 50.45 | 60.17 | 58.84 | 65.29 | 51.83 | 44.52 | 38.43 | 29.10 | 45.70 | |||||||||||||
1987 | 26.61 | 33.64 | 41.61 | 47.07 | 52.29 | 57.87 | 60.10 | 59.68 | 55.20 | 43.61 | 38.13 | 30.00 | 45.48 | |||||||||||||
1988 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 58.87 | ----- | z | ----- | z | ----- | z | ----- | z | 58.87 | k | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 27.82 | 33.62 | 37.26 | 41.81 | 48.46 | 55.08 | 61.24 | 60.52 | 52.42 | 43.47 | 36.05 | 30.57 | 44.56 | |||||||||||||
S.D. | 7.22 | 3.56 | 2.44 | 2.42 | 2.54 | 2.62 | 2.31 | 2.53 | 2.72 | 2.32 | 3.98 | 4.39 | 1.17 | |||||||||||||
SKEW | -0.73 | -0.72 | 0.09 | -0.11 | 0.07 | -0.15 | 0.11 | 0.66 | -0.20 | 0.10 | -1.13 | -0.85 | 0.16 | |||||||||||||
MAX | 42.29 | 40.82 | 42.61 | 47.07 | 54.55 | 60.17 | 66.52 | 66.55 | 58.37 | 48.65 | 42.67 | 36.48 | 47.09 | |||||||||||||
MIN | 9.81 | 21.90 | 32.00 | 36.83 | 43.19 | 49.33 | 55.65 | 56.13 | 45.00 | 38.16 | 23.40 | 18.39 | 41.65 | |||||||||||||
YRS | 39 | 39 | 51 | 53 | 53 | 55 | 53 | 56 | 55 | 55 | 40 | 40 | 39 |